Update and simplify the `create blank project` form
Following the dramatic success of the experiment where we simplified the group and project creation in the registration flow (https://gitlab.com/groups/gitlab-org/-/epics/4825) we should also update the "create blank project" form on the create project screen. This is the issue for the MVC, follow-up iterations of this initiative can be found in the epic (&7375 (closed))
Spec
Updated from original due to #365193 (comment 1024159736)
- remove the "Project description" text area
- track user input in the
slug
field on a peruser
basis
Edited by Doug Stull